Nearly the central section of the mikroekonomi-chesky theory is the theory of firm which enriched economic science with the concept of transactional expenses. Use of this concept for research of economic processes is represented very fruitful now. Possibility of decrease in transactional expenses does effective replacement of a market exchange of the internal organization, than and existence of firms speaks.
The problem of opportunistic behavior in the theory of transactional costs possesses one of the central places. Under this heading various cases of lie, deception, an idling, a skimping the assumed obligations get. Distinguish two main forms of opportunism, first of which the second is characteristic for the relations in the organizations, and for market transactions.
Thanks to transactional approach the modern economic theory gained big realness, having opened for itself a wide range of the phenomena of business life which before were absolutely dropping out of a field of her sight.